It is 3.485 in the inside and 5.1 at the outside but the answer is <span>0.68333333333</span>
        
             
        
        
        
Answer:
22.6 inches
Step-by-step explanation:
The circumference of a circle is given by
C = pi *d
The diameter is 7.2 inches
Approximating pi by 3.14
C = 3.14 * 7.2
C = 22.608
Rounding to the nearest tenth
C = 22.6
 
        
             
        
        
        
Answer:
1 is the missing number. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
 
        
             
        
        
        
It would be the first answer. Bubble. I don't know what you call it. But yeah, it's the first one.